The distribution network planning considering distributed power supply and battery energy storage base on IMO-SLFA

Abstract

Distributed generation (DG) and energy storage technology continue to be developed in power supply transformation. However, the difficulty of access to distributed power and battery energy storage stations makes the traditional distribution network planning method to be somewhat inadaptable. For this reason, this paper establishes a distribution network planning model with a power distribution station, substation, distribution network line, DG and battery energy storage station considered. The objective function of the model is to minimize the construction cost and maintenance cost during the distribution network planning period, and the constraint conditions take into consideration the operation reliability of the power system. Based on this, an improved multi-objective shuffled frog leaping algorithm (IMO-SLFA) was used for sample validation. According to the results, the model can effectively solve the expansion planning problem of a distribution network for several years, and then meet the access demand of DG and battery energy storage stations and the demand of load growth within a certain region. In a word, this paper has guiding significance for the long-term planning of a distribution network and the access of distributed power to the grid.